Manchester United defender Marcos Rojo has revealed the extent of his injury which forced the player to be substituted during last Sunday's Manchester derby at Old Trafford.

The versatile 27-year-old - who only returned to first-team action in the past weeks after a lengthy injury absence - took to social media to show the damage he sustained to his head against Manchester City.

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Having been involved in a clash of heads with David Silva, Rojo was left bleeding severely on the field. Despite being cleaned up during the game, the former Sporting Lisbon man was nonetheless substituted for Victor Lindelof, with Rojo unable to continue.

The player looks visibly dazed after coming off the worse from the incident with the Spaniard, and can be seen below with blood dripping from the top of his head.